the pilot's failure to set the altimeter to the current setting given by the controller resulting in the aircraft altimeter reading 260 feet higher than the actual aircraft altitude. Factors involved were pilot fatigue, weather conditions at approach minimums, and a tailwind.

the failure of the turbocharger, caused by a unapproved rebuild of the turbocharger which contained automotive parts. Debris from the failed turbocharger damaged the oil pump resulting in lack of engine lubrication.